Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea) Author Awad, Jessica 0F70AC80-70B4-4AED-BF6E-A191DF4F68BB State Museum of Natural History Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. FDACS-DPI, 1911 SW 34 St, Gainesville FL 32608, USA. jessica.awad@smns-bw.de Author Krogmann, Lars CF157CC1-326C-4BF9-A262-CBF9FF179B6E State Museum of Natural History Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. FDACS-DPI, 1911 SW 34 St, Gainesville FL 32608, USA. lars.krogmann@smns-bw.de Author Talamas, Elijah FDE12E40-BFCE-444A-AFAD-9A214A129345 elijah.talamas@fdacs.gov text European Journal of Taxonomy 2023 2023-06-15 875 1 1 46 http://dx.doi.org/10.5852/ejt.2023.875.2137 journal article 56102 10.5852/ejt.2023.875.2137 7d1475e5-5737-43a0-910d-c83a4cc6878c 2118-9773 8047251 6F308D64-2F63-454F-AF52-2F712A1DD2F5 Genus Acerota Förster, 1856 (junior synonym of Inostemma Haliday, 1833 ) Acerota Förster, 1856: 107 , 110. Type species Acerota caryae Ashmead, 1887 , by subsequent designation by Muesebeck et al. 1951: 707 . Junior synonym of Inostemma Haliday, 1833 ( Masner 1964: 146 ) . Inocerota Szelényi, 1939: 121 . Type species Inocerota discessus Szelényi, 1939 by original designation. Inocerota Szelényi, 1939 – Masner 1964: 148 . Remarks Acerota was described by Förster as resembling Inostemma , except in the lack of a horn (cornutus) on the first metasomal tergite of the females. He did not include any species. Acerota caryae Ashmead, 1887 , was the first species described in the genus, and thus was automatically the type species. This species was transferred to Inostemma by Masner (1964) , implicitly treating Acerota as a synonym. Acerotella Masner, 1964 was erected to accommodate the remaining species of Acerota , with Acerota evanescens Kieffer, 1914 as the type of the genus. Kieffer described Acerota evanescens from a Förster nomen nudum in NHMW, and thus Förster’s concept of Acerota persisted and his specimens constituted the type material, albeit with the name Acerotella . The genus can be distinguished from Inostemma by the semicircular mesoscutellum in dorsal view ( Fig. 1D ).